diff --git a/bindings/Sofa/tests/Core/ForceField.py b/bindings/Sofa/tests/Core/ForceField.py
index 1ae62b306..7a83fbe13 100644
--- a/bindings/Sofa/tests/Core/ForceField.py
+++ b/bindings/Sofa/tests/Core/ForceField.py
@@ -108,6 +108,7 @@ def simulate_beam(linear_solver_template):
 
         root.addObject('DefaultAnimationLoop')
 
+        root.addObject('RequiredPlugin', name='Sofa.Component.Topology.Container.Grid')
         root.addObject('RequiredPlugin', name='Sofa.Component.ODESolver.Backward')
         root.addObject('RequiredPlugin', name='Sofa.Component.LinearSolver.Direct')
         root.addObject('RequiredPlugin', name='Sofa.Component.Engine.Select')
diff --git a/bindings/Sofa/tests/Core/ObjectFactory.py b/bindings/Sofa/tests/Core/ObjectFactory.py
index 12f0a1558..4f441f2fd 100644
--- a/bindings/Sofa/tests/Core/ObjectFactory.py
+++ b/bindings/Sofa/tests/Core/ObjectFactory.py
@@ -1,9 +1,10 @@
 import unittest
 import Sofa
+import SofaRuntime
 
 class Test(unittest.TestCase):
 
     def test_dump_json(self):
-
+        SofaRuntime.importPlugin("Sofa.Component.StateContainer")
         json = Sofa.Core.ObjectFactory.dump_json()
         self.assertIn("MechanicalObject", json, "MechanicalObject is not found in the json dump of the ObjectFactory")